Figure F3. Expanded segments of seismic lines across Site U1301. Basement in both images is clearly visible as bright events at ~3.9 s two-way traveltime. A. Line GeoB00-466 across Holes U1301A and U1301B. Thin vertical lines indicate approximate depths of penetration, assuming an uppermost basement seismic velocity of 5 km/s (see "Wireline logging"). Hole U1301A is on common depth point (CDP) 557 as indicated by the arrow, whereas Hole U1301B is located 36 m north northeast of the seismic line and projects onto the same CDP. B. Line GeoB00-468 across Holes U1301C and U1031D. The closest approach to Hole U1301C is at CDP 390, and the closest approach to Hole U1301D is CDP 388. Thin vertical lines indicate depths of penetration.
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